- #1

- 17

- 0

Someone solve this please!!!!!

If z= CosA+iSinA, express 2/1+z in the form I-Tan(kA).

If z= CosA+iSinA, express 2/1+z in the form I-Tan(kA).

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- #1

- 17

- 0

Someone solve this please!!!!!

If z= CosA+iSinA, express 2/1+z in the form I-Tan(kA).

If z= CosA+iSinA, express 2/1+z in the form I-Tan(kA).

- #2

- 13,114

- 665

Well,what is that number (2/(1+z)) equal to?

And what do you mean by "I-Tan(kA)"...?

Daniel.

And what do you mean by "I-Tan(kA)"...?

Daniel.

- #3

- 17

- 0

I tried multiplying the 2/(1+z) by the conjugate (1-z) on the top and bottom but I can't get it into the form 1-Tan(kA).

I think this involves trignometric identities and de Moivre's theorem.

- #4

- 22

- 0

Answer will come

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